rebalance getting stuck for more than 2 days

per_node_processes('ns_1@172.23.106.14') =

     {<0.31884.73>,

      [{registered_name,'dcp_replicator-NEW_ORDER-ns_1@172.23.105.83'},

       {status,waiting},

       {initial_call,{proc_lib,init_p,5}},

       {backtrace,[<<"Program counter: 0x00007f157af85568 (gen_server:loop/6 + 264)">>,

                   <<"CP: 0x0000000000000000 (invalid)">>,<<"arity = 0">>,

                   <<>>,

                   <<"0x00007f15717796d8 Return addr 0x00007f157bffc1d0 (proc_lib:init_p_do_apply/3 + 56)">>,

                   <<"y(0)     []">>,<<"y(1)     infinity">>,

                   <<"y(2)     dcp_replicator">>,

                   <<"(3)     {state,[{<0.31869.73>,#Port<0.79083>},{<0.31816.73>,#Port<0.79086>}],<0.31869.73>,\"replication:ns_1@172.23.105.8">>,

                   <<"y(4)     'dcp_replicator-NEW_ORDER-ns_1@172.23.105.83'">>,

                   <<"y(5)     <0.17041.0>">>,<<>>,

                   <<"0x00007f1571779710 Return addr 0x0000000000893588 (<terminate process normally>)">>,

                   <<"y(0)     Catch 0x00007f157bffc1f0 (proc_lib:init_p_do_apply/3 + 88)">>,

                   <<>>]},

       {error_handler,error_handler},

       {garbage_collection,[{min_bin_vheap_size,46422},

                            {min_heap_size,233},

                            {fullsweep_after,512},

                            {minor_gcs,200}]},

       {heap_size,987},

       {total_heap_size,1974},

       {links,[<0.31816.73>,<0.31869.73>,<0.17041.0>]},

       {monitors,[]},

       {monitored_by,[<0.5332.0>]},

       {memory,16784},

       {messages,[]},

       {message_queue_len,0},

       {reductions,23707},

       {trap_exit,true},

       {current_location,{gen_server,loop,6,

                                     [{file,"gen_server.erl"},{line,358}]}},

       {dictionary,[{'$ancestors',['dcp_sup-NEW_ORDER',

                                   'single_bucket_kv_sup-NEW_ORDER',

                                   ns_bucket_sup,ns_bucket_worker_sup,

                                   ns_server_sup,ns_server_nodes_sup,

                                   <0.172.0>,ns_server_cluster_sup,<0.90.0>]},

                    {'$initial_call',{dcp_replicator,init,1}}]}]}